The miser, poor fool, not only starves his body, but also his own soul.
Understanding what and why did not work may be more instructive than celebrating our successes.
This common and unfortunate fact of the lack of adequate presentation of basic ideas and motivations of almost any mathematical theory is probably due to the binary nature of mathematical perception. Either you have no inkling of an idea, or, once you have understood it, the very idea appears so embarrassingly obvious that you feel reluctant to say it aloud.
But anything that can be called "rigor" is lost exactly where the things become interesting and non trivial.
But 'the physical level of rigor' is higher on certainty than the logical one, since reproducible experiments are more reliable than anybody's, be it Hilbert's, Einstein's or Gödel's intuition.
A mathematician would hardly call a correspondence between the set of 64 triples of four units and a set of twenty other units, "universal", while such correspondence is, probably, the most fundamental general feature of life on Earth.
There is no significant difference between human activities and those by amoebas and even bacteria, well, on the GRAND SCALE.
Language is a very difficult thing to put into words.
Germany, I think, was first to substitute a Social Security program for its elderly based on this premise, that is, that we would tax workers to pay retirement benefits for those retired.
When I was a kid, I had ambitions for being a television announcer, which was before television took off, you know, in the late 40s. And just through necessity, going out looking for work, I was starting to sing, and dance, and act, and I never expected to do that, nor to have any success at it at least.
Wisdom is knowing. Skill is know how to do it. Virtue is doing it.